下列哪项不是人体呼吸道的功能(   )A、保证气体顺利通过    

下列哪项不是人体呼吸道的功能(   )

A、保证气体顺利通过        B、温暧、湿润、清洁人体吸入的空气

C、气体振动发出声音        D、进行气体交换

 

答案

D

解析:人体呼吸系统由呼吸道和肺两个部分组成。呼吸道是气体进出的通道,由鼻、咽、喉、气管、支气管组成;喉是发声器官,肺是呼吸系统的主要器官,是气体交换的场所。

 

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